$198 Cheap Flights from Seoul (ICN) to Sydney (SYD)

View $198 flight on Mon, Sep 1, 2025Opens in a new window

Popular airlines from Incheon Intl. Airport (ICN) to Sydney Airport (SYD)

Cheap Flights from Seoul to Sydney (ICN-SYD)

Prices were available within the past 7 days and start at $198 for one-way flights and $425 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Xiamen Airlines
Tue, Aug 19 - Fri, Sep 5
ICN
Seoul
SYD
Sydney
$425 Roundtrip, found 1 hour ago
$425
Roundtrip
found 1 hour ago
Select Xiamen Airlines flight, departing Tue, Aug 19 from Seoul to Sydney, returning Fri, Sep 5, priced at $425 found 1 hour ago
China Eastern Airlines
Sat, Aug 30 - Wed, Sep 3
ICN
Seoul
SYD
Sydney
$440 Roundtrip, found 9 hours ago
$440
Roundtrip
found 9 hours ago
Select China Eastern Airlines flight, departing Sat, Aug 30 from Seoul to Sydney, returning Wed, Sep 3, priced at $440 found 9 hours ago
Jetstar
Tue, Mar 10 - Tue, Mar 17
ICN
Seoul
SYD
Sydney
$442 Roundtrip, found 2 days ago
$442
Roundtrip
found 2 days ago
Select Jetstar flight, departing Tue, Mar 10 from Seoul to Sydney, returning Tue, Mar 17, priced at $442 found 2 days ago
Scoot
Wed, Sep 3 - Tue, Sep 9
ICN
Seoul
SYD
Sydney
$449 Roundtrip, found 3 days ago
$449
Roundtrip
found 3 days ago
Select Scoot flight, departing Wed, Sep 3 from Seoul to Sydney, returning Tue, Sep 9, priced at $449 found 3 days ago
China Southern Airlines
Mon, Sep 1 - Thu, Sep 4
ICN
Seoul
SYD
Sydney
$452 Roundtrip, found 3 hours ago
$452
Roundtrip
found 3 hours ago
Select China Southern Airlines flight, departing Mon, Sep 1 from Seoul to Sydney, returning Thu, Sep 4, priced at $452 found 3 hours ago
Vietnam Airlines
Sun, Oct 26 - Mon, Nov 3
ICN
Seoul
SYD
Sydney
$487 Roundtrip, found 3 days ago
$487
Roundtrip
found 3 days ago
Select Vietnam Airlines flight, departing Sun, Oct 26 from Seoul to Sydney, returning Mon, Nov 3, priced at $487 found 3 days ago
Sichuan Airlines
Tue, Sep 9 - Wed, Sep 17
ICN
Seoul
SYD
Sydney
$494 Roundtrip, found 4 days ago
$494
Roundtrip
found 4 days ago
Select Sichuan Airlines flight, departing Tue, Sep 9 from Seoul to Sydney, returning Wed, Sep 17, priced at $494 found 4 days ago
Philippine Airlines
Sun, Aug 10 - Tue, Aug 12
ICN
Seoul
SYD
Sydney
$542 Roundtrip, found 1 day ago
$542
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Sun, Aug 10 from Seoul to Sydney, returning Tue, Aug 12, priced at $542 found 1 day ago
Hong Kong Airlines
Sun, Oct 26 - Sun, Nov 2
ICN
Seoul
SYD
Sydney
$552 Roundtrip, found 1 day ago
$552
Roundtrip
found 1 day ago
Select Hong Kong Airlines flight, departing Sun, Oct 26 from Seoul to Sydney, returning Sun, Nov 2, priced at $552 found 1 day ago
Air China
Sat, Nov 15 - Sun, Nov 23
ICN
Seoul
SYD
Sydney
$575 Roundtrip, just found
$575
Roundtrip
just found
Select Air China flight, departing Sat, Nov 15 from Seoul to Sydney, returning Sun, Nov 23, priced at $575 just found

Find the cheapest month to fly from Seoul (ICN) to Sydney (SYD)

March is typically the cheapest month to fly

From $341 - $572 per traveler.

Graph displaying average flight prices per month

Alternative airports near Sydney

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Kingsford Smith Intl. SYD. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $559
SYD
Kingsford Smith Intl.
Cheapest
Average driving time to city center16 min
Flights from $559
Flights from Seoul (ICN) to Sydney (SYD)
Origin airport
Incheon Intl.
Destination airport
Kingsford Smith Intl.
Airlines serving
Air China, Air India, All Nippon Airways, Asiana Airlines, Cathay Pacific, China Eastern Airlines, China Southern Airlines, Garuda Indonesia, Hong Kong Airlines, Jetstar, Juneyao Air, Korean Air, Malaysia Airlines, Philippine Airlines, Scoot, Singapore Airlines, Thai Airways International, Vietjet Air, Vietnam Airlines, Xiamen Airlines
Roundtrip price
$424
Distance
5182 mi
Average flight time
11 hours 22 mins

Seoul to Sydney Flights

The cheapest times to fly from Seoul to Sydney

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seoul to Sydney are during the month of August. You can find some of the cheapest flights from Seoul to Sydney with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seoul to Sydney

Sunday is one of the best days to book for cheap flights from Seoul to Sydney: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seoul to Sydney

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seoul to Sydney in 2025. You can also book with separate airlines for your outbound and return journeys, from $198 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seoul to Sydney flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seoul to Sydney airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Incheon Intl. Airport (ICN) to Kingsford Smith Intl. Airport (SYD) cost?
You can land cheap return tickets from Incheon Intl. Airport (ICN) to Kingsford Smith Intl. Airport (SYD) starting at $591. Book a seat and set off on your next adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Jetstar flight leaving ICN on August 19 2025 and touching down at SYD. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from ICN to SYD?
The cheapest flights from ICN to SYD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Incheon Intl. Airport (ICN) to Kingsford Smith Intl. Airport (SYD)?
You can fly direct from Incheon Intl. Airport (ICN) to Kingsford Smith Intl. Airport (SYD) with 5 carriers, including:

  • Asiana Airlines
  • Korean Air
  • TWay Air
  • Jetstar
  • Qantas

What is the cheapest airline that flies from ICN to SYD?
Right now, the cheapest carrier offering one-way flights from ICN to SYD is Korean Air. You can take off on this route from $402. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from ICN on September 8 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Incheon Intl. Airport (ICN) to Kingsford Smith Intl. Airport (SYD)?
When departing from Incheon Intl. Airport (ICN), you'll have a choice from an average of 3 daily direct flights to Kingsford Smith Intl. Airport (SYD).
What are the most popular departure times for flights from Incheon Intl. Airport (ICN) to Kingsford Smith Intl. Airport (SYD)?
The 6 PM departures from ICN to SYD see the highest demand. They can also be more expensive. If you want to save on your fare, book during off-peak hours.
What day of the week has the most flights from ICN to SYD?
Monday offers the most flights from Incheon Intl. Airport (ICN) to Kingsford Smith Intl. Airport (SYD). Consider taking off on this day and you'll have the best chance of finding a departure that fits your itinerary.
What is the earliest flight from Incheon Intl. Airport (ICN) to Kingsford Smith Intl. Airport (SYD)?
Catch the earliest flight at around 6:45PM UTC+9, heading out of Incheon Intl. Airport (ICN). You'll be traveling for about 10h 10m, coming in to land at Kingsford Smith Intl. Airport (SYD) at approximately 6:55AM UTC+11.
How long does it take to fly from Incheon Intl. Airport (ICN) to Kingsford Smith Intl. Airport (SYD)?
Flights from ICN to SYD have an average travel time of 10 hours and 19 minutes. The total distance between these two airports is 5,200 mi.
What is the best time to fly from Incheon Intl. Airport (ICN) to Kingsford Smith Intl. Airport (SYD)?
To reach Kingsford Smith Intl. Airport (SYD) on schedule, choose a flight that leaves Incheon Intl. Airport (ICN) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Sydney from Incheon Intl. Airport (ICN)?
Kingsford Smith Intl. Airport (SYD) is the only airport in Sydney with direct flights from Incheon Intl. Airport (ICN). Compare your options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Incheon Intl. Airport (ICN) to Kingsford Smith Intl. Airport (SYD) last-minute?
Booking your ticket from ICN to SYD shortly before your journey is typically more expensive. However, if you're flexible with your travel times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book an ICN to SYD flight and hotel package?
You'll typically save money by booking an ICN to SYD flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've chosen your preferred flights and accommodations, you can add extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from Incheon Intl. Airport (ICN) to Kingsford Smith Intl. Airport (SYD)?
If you reserved your ICN to SYD flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

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*Available to One Key members.